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From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Ian Campbell <Ian.Campbell@citrix.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
	Alex Bligh <alex@alex.org.uk>
Subject: Re: xen_emul_unplug on xen 4.1, HVM guest 2.6.38
Date: Thu, 27 Oct 2011 09:13:29 -0400	[thread overview]
Message-ID: <20111027131329.GA2242@phenom.dumpdata.com> (raw)
In-Reply-To: <1319707628.9436.84.camel@zakaz.uk.xensource.com>

> > Are the PV devices meant to appear as /dev/sdX rather than /dev/xvdX?
> 
> No, there is no support for this in upstream kernels (in general all the
> old behaviours of Xen kernels where they would hijack other drivers
> device names are not upstreamble)

Wait a minute. I think these two:

konrad@phenom:~/work/linux$ git shortlog v3.0..v3.1 drivers/block/xen-blkfront.c
Stefan Bader (2):
      xen-blkfront: Drop name and minor adjustments for emulated scsi devices
      xen-blkfront: Fix one off warning about name clash


Made it happen.. as without them the Amazon EC2 would not boot?

Details: "    xen-blkfront: Drop name and minor adjustments for emulated scsi devices
    
    These were intended to avoid the namespace clash when representing
    emulated IDE and SCSI devices. However that seems to confuse users
    more than expected (a disk defined as sda becomes xvde).
    So for now go back to the scheme which does no adjustments. This
    will break when mixing IDE and SCSI names in the configuration of
    guests but should be by now expected"

  reply	other threads:[~2011-10-27 13:13 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-26 17:43 xen_emul_unplug on xen 4.1, HVM guest 2.6.38 Alex Bligh
2011-10-27  9:27 ` Ian Campbell
2011-10-27 13:13   ` Konrad Rzeszutek Wilk [this message]
2011-10-27 13:27     ` Stefano Stabellini
2011-10-27 13:35     ` Ian Campbell
2011-10-27 13:18   ` Alex Bligh
2011-10-27 13:35     ` Stefano Stabellini
  -- strict thread matches above, loose matches on Subject: below --
2011-10-26 13:17 Alex Bligh
2011-10-26 13:49 ` Konrad Rzeszutek Wilk
2011-10-26 14:12   ` Pasi Kärkkäinen
2011-10-26 14:47     ` Alex Bligh
2011-10-26 14:56       ` Ian Campbell
2011-10-26 15:59         ` Pasi Kärkkäinen
2011-10-26 16:22           ` Ian Campbell
2011-10-26 16:25         ` Alex Bligh
2011-10-26 16:43           ` Ian Campbell
2011-10-27  8:02             ` Stefan Bader
2011-10-27 13:42               ` Stefano Stabellini
2011-10-27 13:45                 ` Stefan Bader
2011-10-27 14:08                   ` Stefano Stabellini
2011-10-27 14:13                     ` Stefan Bader
2011-10-27 14:25                       ` Stefano Stabellini
2011-10-27 14:46                         ` Stefan Bader
2011-10-27 13:48                 ` Stefan Bader
2011-10-27 14:09                   ` Stefano Stabellini
2011-10-26 15:54       ` Pasi Kärkkäinen

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